Laundry washing-machine.



No. 896,125, PATENTED AUG. 18, 1908,

E. LOMMATZSGH.

LAUNDRY WASHING MACHINE.

APPLICATION FILED MAY 5, 1906.

Wf/ivesrey 177%7770 7 illbliTED ERNST LOMMATZSCH, OF BGSDORF, GERMANY.

LAUNDRY WASHING-MACHINE.

Specification of Letters Patent.

Patented Aug. 18, 1908.

Application filed May 5, 1%6. Seriai Ne. $15-$29.

To all whom it may concern:

Be'it known that I, ERNST LOMMATZSCH, a subject of the King of Saxony, residing at Bosdorf, Saxony, Germany, have invented certain" new and useful Improvements in Laundry Washing-Machines, ofiwhich the following is a specification.

This invention relates to improvements in laundry washing-machines with concentric drums or cylinders. i

The washing machines hitherto known with concentric drums adapted to be used also for hydro-extracting purposes have the important disadvantage that the axles or journals of the drums, and the bearings thereof, are subject tovery rapid wear; moreover, the oil required for lubricating the said bearings is liable to come into, contact with the washing-liquid, and centrifugal work at high s eed is rendered impracticable even by s ight wear of the bearings and axles, owing to the unsteady action which-results from such wean. the fact that the two concentric drums, that is to say the inner drum for the reception of the clothes or the like and the outer drum for the reception of the liquid, have hitherto been so arranged that they are inter-connected, the inner drum having hearings in the outer drum by means of stufiing boxes and journals. The said bearings are, therefore, in contact with the washing-liquid, so that the latter is soiled by the lubricant, and the bearings and axles are worn out by the heat and friction due to the removal of the said lubricant from the parts to which it is aplied. P The object of the present invention is to remove these disadvantages by arranging the bearings of the inner drum in such a manner that they do not come into contact with the outer drum for the reception of the liquid.

The invention is illustrated in the annexed drawing, Figure 1 being a sectional elevation and Fig. 2 a sectional plan of a washing drum provided with. the present invention.

The washing-machine comprises the stationary external drum 1) for .the reception of the washing-liquid, and the rotary internal drum 'a for the reception of the clothes, the

drum a being concentric with the drum 1) and- These disadvantages result from fixed to the rotatable axle or shaft c. The

due to the removal of the luing purposes, without oscillation or jolting resulting from worn hearings.

To prevent the discharge of liquid and 'stearn from the external drum during the washing process, slidabie sleeves e are arranged on the shaft 0. During the washing operation these sleeves, which can be disp aoed by means of levers f pivoted at g, are pressed against the end covers of the drum as shown in Fig. 2.

After the washin operation the sleeves can be moved into t e positions clear of the drum 1) by means of said levers f, as shown in dotted lines in Fig. 2 so that there is no frictional contact between the sleeves and the outer drum when the inner drum is being rapidly rotated sleeves can rotate with the shaft of the inner drum.

I am aware that it has been previously proposed to use washing machines inwhich the axle of the'inner cylinder is supported on external bearings and passes through glands in the outer cylinder and no claim per se is made to these features, but

What I claim as my invention and desire to secure by Letters Patent of the United States is i, In a laundry washing'machine the combination of a fixed outer drum for containing liquid and having centrally disposed apertures in its end walls, a rotary interior drum for reception of the articles to be treated, a shaft carrying said interior drum and passing freely through the apertures in the outer drum, bearings for said shaft exteriorly of said drums and manually operable means slidable on the shaft for closing the apertures aforesaid substantially as described.

2. .ln a laundry washing machine the combination of a fixed outer drum for containing liquid and having centrally disposed aperior hydro-extraction, and the tures in its end walls, a rlitary interior drum said sleeves .on the shaft substantially as for reception of the articles to be treated, a described. l0-

shaft carrying said interior drum and passing In Witness whereof I have signed this specifreely through "the apertures in the outer fication in the presence of two witnesses. drum, bearings for said shaft exteriorly' of ERNST LOlVlHATZSCll,

said drums, sleeves slidably mounted on said Witnesses:

shaft adapted to close the apertures afore- ERNST AUGER, said and manually operable levers for sliding WM. HEFFTER. 

